When writing dialogue, writers often break it up with things like, he continued. Instead of using those types of interjections, you can put a variety of things in there to flesh out your story. You can put in description of characters, their clothes, their hair, etc. You can do this for the MC (main character) as well as the other characters. For instance: Bill got out of the Suburban and shrugged on his heavy leather coat. It sure was cold out there, he thought, and shuddered. What did it feel like to die in this cold? He shuddered to think.

What I did in this last segment was combine three components you can intersperse in dialogue. I put in an action, shrugging on the coat, I put a physical description, the heavy leather coat, and I put in a thought. Then I put another action, the shuddering. You can show a few descriptions of the other character(s), or give a few ideas about the setting. This gives the reader a fuller picture of what’s happening, who the characters are, and what the setting looks like.